<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="./css/demo1.css">
    <script src="./js/demo1.js"></script>
    <script src="./js/loginbug.js"></script>
</head>

<body>
    <h2>随便写个字</h2>
    用户名：<input type="text" placeholder="请输入登录名"><br>
    密&nbsp;码:<input type="password" name=""><br>
    <button>登录</button>
</body>

</html>